How much can a RB engine handle?

[$ballin$]

Hi all,

Just wanted to ask a quick question or two...i was wondering if any skyline owners with a RB20DET uses ever travels a fair distance (being at least over a 100km)...what is considered a safe speed to sit on engine wise?....i was just wondering because i sometimes drive my R32 over 240km distance like 4 times a year and i sit on a speed where the engine is revving around 4.5 - 5 revs...is that safe for RB engines?....comments would be apreciated

cheers

[WazR32GTSt]

i drove from melb to queensland...

sat on 110-115 km/h for 2-3 hours straight for most of the time

sometimes up a hill with a full car (read: fridge, books, all my belongings plus me and my g/f) i would sit on full boost for 10secs while i climbed a hill

the good old rb20 didn't miss a beat!

Warren.

[buzzin]

[the good old rb20 didn't miss a beat! ]

i second that

i drove from melbourne to sydney and back in a day/night and the car didnt use any water

and it was even cheaper on petrol than my ute

GO THE RB20's

[daler32]

i drove almost 10 hrs straight 100-120k average only stoppin for fuel didnt miss a beat

[$ballin$]

what did you guys sit on?

[kezza]

what did you guys sit on?

I did a day trip 4 hours to, and 4 hours back.. sitting on 120km/ph most of the way

they are made for the track bro, they can handle heaps of shit b4 they get mad at ya! lol

120 was my slowest speed when i was on the freeway, and yeah same as the other guys, didnt miss a beat..

the only real time she used fule was when i was on boost! playing games with fords!! lol

kezza

[Jax]

$ballin$, Did those revs work out to around 150 to 160 Kl per hr? You can do that in NT. Don't see why it should be any problem.

[Jax]

Just did a re-calculation - more like 160 / 175, don't see a problem, used to do that and much more here in the other States in the '60s and 70s,for long distances, when it was legal, and those cars held together. RBs should do it easily.

[$ballin$]

yeah the car was doin around the 160+ mark at those revs. i was just a bit worried that sitting on this speed with a turbo engine being only a 2litre might not be good for the RB...however the engine did cope pretty well and at sometimes i would get carried away and hit 180km/h.

[Jax]

The thought of it almost has me moving to Darwin, and take a run down to Three Ways just for the hell of it. So long as your Water temp remains in range, and same with oil pressure, enjoy!

[Duncan]

I drove my rb25 100klm each way return for 9 months in the NT, sitting just below the rev limiter at 190 for 1/2 hour each time. Also drove the car the 4500klm to get there....no problems except finding 98 octane

[$ballin$]

yeah we can pretty much hit any speed we want here...so aslong as the cooling system is ok the RB20DET can handle much anything you give it during a constant period...getting to 180km/h is pretty easy too bad the limiter spoils the fun

[Jax]

There's info on here somewhere, on how to disable the limiter!!!

[The Dan]

Cut wire 52 on the computer. Should be a green wire with a yellow trace or a yellow wire with a green trace....can't recall, it's been ages. Make sure you put a switch on it so you can exit from Hicas diag mode when you need to.

[WazR32GTSt]

Cut wire 52 on the computer. Should be a green wire with a yellow trace or a yellow wire with a green trace....can't recall, it's been ages. Make sure you put a switch on it so you can exit from Hicas diag mode when you need to.

just a warning...

when i tried this wire 53 cut, i had issues with stalling when cold at low rpm

why? don't know...

problem went away when i re-connected the wire!

Warren.

[Jax]

Cut the wire, put a switch in, leave switch on, except when about to exceed 180.

[gts4diehard]

Hi, I once did a trip where I sat on 140 kms an hour for 4 hours solid - just cruising with no excessive acceleration and achieved 10kms a litre, not bad for an rb20det!

Like most cars it can handle high revs if the cooling system is in good nick, my car has been on several track excursions where it gets a 'good' workout over a 10 min period then a 30-40 min cooldown and the temp gauge has never moved from the normal position it sits on and has always idled perfectly after those runs.

[DaGr81]

yeah the car was doin around the 160+ mark at those revs. i was just a bit worried that sitting on this speed with a turbo engine being only a 2litre might not be good for the RB...however the engine did cope pretty well and at sometimes i would get carried away and hit 180km/h.

:werd: i was doin between 160 and 180 for a good 30 mins with revs around 4500 rpm on the way to wollongong from liverpool , heaps of hills and the way down as like :headspin:

[DaGr81]

:werd: i was doin between 160 and 180 for a good 30 mins with revs around 4500 rpm on the way to wollongong from liverpool , heaps of hills and the way down as like  :headspin:

but then again mines 2.5L but same shit